Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2002GOLF GLS, 2.0 K, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 6 (ON BOARD DIAGNOSTIC (OBD) - 1.9L ALH, 2V TDI)
2002 Volkswagen Golf GLS, 2.0 K, Standard
Section 6 (On Board Diagnostic (OBD) - 1.9L ALH, 2V TDI)
2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Section 6 (On Board Diagnostic (OBD) - 1.9L ALH, 2V TDI)
WARNING: This page is about a different variant/trim than selected.
- On Board Diagnostic
- DTC table: VAG codes
- Function 03: Output Diagnostic Test Mode (DTM)
- Readiness code
- Measured value blocks
- Safety precautions
- Measured value block, reading
- Evaluating Measured value blocks, at idle
- Display group 000 at idle with engine warm, coolant temperature above 80 °C (176 °F)
- Display group 001 at idle with engine warm, coolant temperature not below 80 °C (176 °F)
- Evaluation: Injected quantity display
- Evaluation: Modulating piston displacement sensor -G149- voltage display
- Display group 002 at idle with engine warm, coolant temperature above 80 °C (176 °F)
- Evaluation: "Throttle position" display
- Evaluation: "Operating condition" display
- Display group 003 at idle with engine warm, coolant temperature not below 80 °C (176 °F)
- Evaluation: Air mass drawn in (specified) display
- Evaluation: Air mass drawn in (actual) display
- Display group 004 at idle with engine warm, coolant temperature not below 80 °C (176 °F)
- Evaluation: Start of injection (specified) display
- Evaluation: Start of injection display (actual)
- Display group 005
- Display group 006 with ignition switched on
- Evaluation: Brake pedal monitor display
- Display group 007 with ignition switched on (engine cold and not running)
- Evaluation: Fuel temperature display
- Evaluation: Intake Air Temperature display
- Evaluation: Coolant temperature display
- Display group 009
- Display group 012
- Display group 013 at idle speed with engine warm, coolant temperature above 80 °C (176 °F)
- Evaluation: idle speed smooth running control display
- Display group 015
- Display group 016 at idle
- Evaluation: Additional heater display
- Evaluation: Heater element activation display
- Display group 19 with ignition on
- Evaluation: Modulating piston displacement sensor -G149- voltage display (start / stop positions)
- Display group 000 at Wide Open Throttle (WOT), test drive in 3rd gear, Engine Coolant Temperature 80 °C (176 °F) minimum
- Display group 004 at Wide Open throttle (WOT), test drive in 3rd gear, Engine Coolant Temperature 80 °C (176 °F) minimum
- Evaluation: Start of injection (actual) display
- Evaluation: Cold start valve duty cycle display
- Display group 008 at Wide Open Throttle (WOT), test drive in 3rd gear, Engine Coolant Temperature above 80 °C (176 °F)
- Evaluation: Injected quantity (driver's requirement) display
- Evaluation: Injected quantity limitation via RPM (torque limitation) display
- Evaluation: Injection quantity limitation due to air mass drawn in (smoke prevention) display
- Display group 010 at WOT, test drive in 3rd gear, Engine Coolant Temperature above 80 °C (176 °F)
- Evaluation: Air mass drawn in display
- Evaluation: Intake manifold pressure (charge pressure) display
- Evaluation: Accelerator pedal position display
- Display group 011 at Wide Open Throttle (WOT), test drive in 3rd gear, Engine Coolant Temperature above 80 °C (176 °F)
- Evaluation: Manifold Absolute Pressure display (actual)
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.